Abstract

This paper addresses some of the issues involved in incorporating use of prototypes into a research program. Definitions, merits and uses of both low and high-fidelity prototypes are discussed and then the applications of prototypes in our research program into intuitive interaction are explored. It has previously been established that intuitive interaction is based on past experience, and can be encouraged by designing interfaces that contain familiar features (Blackler, 2006; Blackler, Popovic, & Mahar, 2007b). Two aspects of the research program which are relevant to prototyping are: researching the issues of how intuitive use happens and how it can be better facilitated; and developing ways to help designers include investigations about users and their existing knowledge into their design processes in order to make interfaces more intuitive.
The current and future planned applications of high and low-fidelity prototypes in each of these areas are explored. Then experiences with using high-fidelity touchscreen prototypes for experimental research into intuitive interaction are discussed, including problems with the prototypes, how they were addressed and what we have learned from the process. Next the potential for low-fidelity prototypes to elicit users’ tacit knowledge during the design process is explored. This has exciting possibilities due to the link between intuitive interaction and tacit knowledge. Finally, the challenges of developing prototype-based design tools for use by older people are discussed and future directions for using prototypes in our research program are considered.

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